Caution: Do not connect any new switches in SmartFabric mode to the fabric until the preferred master settings are validated on the existing and new switches. This is covered in the next section of this chapter.
In this chapter, the SmartFabric is expanded to a second rack with the addition of Spine1, Spine2, Leaf2A, and Leaf2B. After the fabric is expanded, ESXi node 3 and Isilon node 4 in Rack 2 is added to the existing cluster.
Note: SFS supports up to 20 switches in the fabric. This scales to 9 racks if 2 spines and 18 leafs are used. Any combination of leafs and spines may be used with the exception that leaf switches must be deployed in pairs, and at least two spines are used.